Beautiful day isn’t it? Shall we go out for a picnic?- !A. Good luckB. Sounds grea

问题补充：

--- Beautiful day, isn’t it? Shall we go out for a picnic?

--- !

A. Good luck

B. Sounds great

C. You are right

D. Have fun

答案：

A. Good luck

(答案→)B. Sounds great

C. You are right

D. Have fun

解析：考查交际用语。A祝你好运；B听起来很棒；C你是对的；D玩得开心。句意：—今天的天气镇好的，不是吗？我们去野餐怎么样？—听起来很棒。根据句意第一句是提出了去野餐的建议，后者表示同意赞成。故B正确。